Agent skill

openwebf-host-performance-metrics

Instrument and diagnose WebF performance in Flutter (FP/FCP/LCP, dumpLoadingState, loading-state events). Use when the user mentions FP/FCP/LCP, dumpLoadingState, first render slow, LCP verification, or performance monitoring.

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/product/openwebf-host-performance-metrics

SKILL.md

OpenWebF Host: Performance Metrics & Diagnosis

Instructions

  1. Establish measurement: capture FP/FCP/LCP and key lifecycle timings.
  2. Use MCP docs for the official performance monitoring APIs and guidance.
  3. Use dumpLoadingState (or equivalent) to diagnose where time is spent.
  4. Offer scaffolding templates when useful:
    • perf/loading-state-events
    • perf/loadingstate-dump
    • perf/lcp-content-verification

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